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Node Splitting for Improved Virtual Network Embedding: A Feasibility Study
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- Authors
- Jihun HA, Yongtae PARK, Byungjo KIM, Eunah KIM, Sunhee YANG, Hyogon KIM
- Issue Date
- 2012-07
- Citation
- IEICE Transactions on Communications, v.E95-B, no.7, pp.2463-2466
- ISSN
- 0916-8516
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- When the residual resources on a virtualized substrate network (SN) are insufficient to meet the resource demands from the requested virtual network (VN) at specific locations, we can attempt to accommodate the VN by allocating resources at alternative locations and transparently serve the accesses to the VN by having them internally rerouted to the actually allocated locations. In this letter, we explore the feasibility of nodal resource splitting in such alternative allocation scenarios. We find that in order to facilitate such alternative allocations, we should first define the node-link resource dependencies. Once the dependencies are given, we demonstrate that the splitting can visibly improve the SN utilization and the request rejection rate for VN embedding requests under many network scenarios. © 2012 The Institute of Electronics, Information and Communication Engineers.
- KSP Keywords
- Feasibility study, Information and communication, Network scenarios, Substrate network(SN), VN embedding, rejection rate, virtual network embedding